I am hopeful that there’s a rifle company out there that will one day come out with a practical design for a large bore pump action. I will be first in line to buy one! I don’t suppose the market will be very large to sell into though for a big bore caliber only, given most DG hunters hunt with bolts or doubles and likely will continue to choose those two action types as long as there is DG hunting. The laws in many DG hunting destinations also may preclude the use of a pump action. This makes the likelihood of getting a practical design big bore pump action to market slim to none, other than modifying existing small bore designs to handle the larger big bore cartridges. Unfortunately, a small bore design with a tight radius and or upright pistol grip that works so well on the range or in the field with the low recoil of the small bore, simply is a poor choice for a caliber that has significant recoil.